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Diffstat (limited to 'arch/um/include/os.h')
| -rw-r--r-- | arch/um/include/os.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/arch/um/include/os.h b/arch/um/include/os.h new file mode 100644 index 000000000000..07340c8cf203 --- /dev/null +++ b/arch/um/include/os.h @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __OS_H__ +#define __OS_H__ + +#include "asm/types.h" +#include "../os/include/file.h" + +#define OS_TYPE_FILE 1 +#define OS_TYPE_DIR 2 +#define OS_TYPE_SYMLINK 3 +#define OS_TYPE_CHARDEV 4 +#define OS_TYPE_BLOCKDEV 5 +#define OS_TYPE_FIFO 6 +#define OS_TYPE_SOCK 7 + +/* os_access() flags */ +#define OS_ACC_F_OK 0 /* Test for existence. */ +#define OS_ACC_X_OK 1 /* Test for execute permission. */ +#define OS_ACC_W_OK 2 /* Test for write permission. */ +#define OS_ACC_R_OK 4 /* Test for read permission. */ +#define OS_ACC_RW_OK (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */ + +/* + * types taken from stat_file() in hostfs_user.c + * (if they are wrong here, they are wrong there...). + */ +struct uml_stat { + int ust_dev; /* device */ + unsigned long long ust_ino; /* inode */ + int ust_mode; /* protection */ + int ust_nlink; /* number of hard links */ + int ust_uid; /* user ID of owner */ + int ust_gid; /* group ID of owner */ + unsigned long long ust_size; /* total size, in bytes */ + int ust_blksize; /* blocksize for filesystem I/O */ + unsigned long long ust_blocks; /* number of blocks allocated */ + unsigned long ust_atime; /* time of last access */ + unsigned long ust_mtime; /* time of last modification */ + unsigned long ust_ctime; /* time of last change */ +}; + +struct openflags { + unsigned int r : 1; + unsigned int w : 1; + unsigned int s : 1; /* O_SYNC */ + unsigned int c : 1; /* O_CREAT */ + unsigned int t : 1; /* O_TRUNC */ + unsigned int a : 1; /* O_APPEND */ + unsigned int e : 1; /* O_EXCL */ + unsigned int cl : 1; /* FD_CLOEXEC */ +}; + +#define OPENFLAGS() ((struct openflags) { .r = 0, .w = 0, .s = 0, .c = 0, \ + .t = 0, .a = 0, .e = 0, .cl = 0 }) + +static inline struct openflags of_read(struct openflags flags) +{ + flags.r = 1; + return(flags); +} + +static inline struct openflags of_write(struct openflags flags) +{ + flags.w = 1; + return(flags); +} + +static inline struct openflags of_rdwr(struct openflags flags) +{ + return(of_read(of_write(flags))); +} + +static inline struct openflags of_set_rw(struct openflags flags, int r, int w) +{ + flags.r = r; + flags.w = w; + return(flags); +} + +static inline struct openflags of_sync(struct openflags flags) +{ + flags.s = 1; + return(flags); +} + +static inline struct openflags of_create(struct openflags flags) +{ + flags.c = 1; + return(flags); +} + +static inline struct openflags of_trunc(struct openflags flags) +{ + flags.t = 1; + return(flags); +} + +static inline struct openflags of_append(struct openflags flags) +{ + flags.a = 1; + return(flags); +} + +static inline struct openflags of_excl(struct openflags flags) +{ + flags.e = 1; + return(flags); +} + +static inline struct openflags of_cloexec(struct openflags flags) +{ + flags.cl = 1; + return(flags); +} + +extern int os_stat_file(const char *file_name, struct uml_stat *buf); +extern int os_stat_fd(const int fd, struct uml_stat *buf); +extern int os_access(const char *file, int mode); +extern void os_print_error(int error, const char* str); +extern int os_get_exec_close(int fd, int *close_on_exec); +extern int os_set_exec_close(int fd, int close_on_exec); +extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg); +extern int os_window_size(int fd, int *rows, int *cols); +extern int os_new_tty_pgrp(int fd, int pid); +extern int os_get_ifname(int fd, char *namebuf); +extern int os_set_slip(int fd); +extern int os_set_owner(int fd, int pid); +extern int os_sigio_async(int master, int slave); +extern int os_mode_fd(int fd, int mode); + +extern int os_seek_file(int fd, __u64 offset); +extern int os_open_file(char *file, struct openflags flags, int mode); +extern int os_read_file(int fd, void *buf, int len); +extern int os_write_file(int fd, const void *buf, int count); +extern int os_file_size(char *file, long long *size_out); +extern int os_file_modtime(char *file, unsigned long *modtime); +extern int os_pipe(int *fd, int stream, int close_on_exec); +extern int os_set_fd_async(int fd, int owner); +extern int os_clear_fd_async(int fd); +extern int os_set_fd_block(int fd, int blocking); +extern int os_accept_connection(int fd); +extern int os_create_unix_socket(char *file, int len, int close_on_exec); +extern int os_shutdown_socket(int fd, int r, int w); +extern void os_close_file(int fd); +extern int os_rcv_fd(int fd, int *helper_pid_out); +extern int create_unix_socket(char *file, int len, int close_on_exec); +extern int os_connect_socket(char *name); +extern int os_file_type(char *file); +extern int os_file_mode(char *file, struct openflags *mode_out); +extern int os_lock_file(int fd, int excl); + +extern unsigned long os_process_pc(int pid); +extern int os_process_parent(int pid); +extern void os_stop_process(int pid); +extern void os_kill_process(int pid, int reap_child); +extern void os_kill_ptraced_process(int pid, int reap_child); +extern void os_usr1_process(int pid); +extern int os_getpid(void); + +extern int os_map_memory(void *virt, int fd, unsigned long long off, + unsigned long len, int r, int w, int x); +extern int os_protect_memory(void *addr, unsigned long len, + int r, int w, int x); +extern int os_unmap_memory(void *addr, int len); +extern void os_flush_stdout(void); +extern unsigned long long os_usecs(void); + +#endif + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |